Suction roll



Sept. 1, 1931.

G. D. KILBERRY SUCTION ROLL Filed July 18, 1929 2 Sheets-Sheet 1 -mmmw a, W. 7

Sept. 1, 1931. G. D. KILBERRY SUCT ION ROLL Filed July 18, 1929 2 Sheets-Sheet 2 Ewe/$2: g f

Patented Sept. 1, 193i UNITED STATES PATENT OFFICE GEORGE D. KILBEBRY, 0F DOWNINGTOWN,

PENNSYLVANIA, ASSIGNOR TO DOWNING- RATION OF PENNSYLVANIA SUCTION ROLL Application filed July 18,

This invention relates to an improved suction roll such as is used principally on paper machines or the like to extract water from the web of the paper, and more particularly pertains to direct-driven suction rolls having small diameter main journals, though. it is to be understood that it is adaptable for use with other conventional 'I'ypes of suction rolls.

In order to properly carry out my invention, the back journal of the suction box is preferably carried interiorly of the main rear ournal, while the front suction box j ournal ma or may not be carried interiorly of the mam front journal. By my invention, it is possible to apply suction to the rear main journal extension rather than at the front suction box head, thus doing away with the necessity of breaking the connections to the exhaust ng pump. when the wire or felt is be,- ing changed. This construction also simplifies the front end construction, andshortens the length of suction box heads, bringing the adjusting mechanism and water and air connections in closer proximity to the roll, resulting in a more neat and compact arrangement.

An object of my invention, therefore, is to simplify the construction ofthe suction rolls such as are used in paper making machines.

Another object is to produce a directdriven suction roll wherein the suction box is exhausted from the rear end of the roll.

Another object is to produce a directdriven suction roll having relatively small diameter main journals, wherein the suction box is exhausted through the rear main journal.

Another object is to produce a neat and compact arrangement of a direct-driven suction roll and its exhausting connections.

Other objects will appear hereinafter. In the drawings, in which is illustrated one form of my invention;

Fig. 1 is a vertical section through the left hand or front end of a suction roll according to my construction, showing the suction box in operative relation to the suction roll;

Fig. 2 is a vertical section through the right hand or rear end of the suction roll, the

1929. Serial No. 379,237.

suction box being shown in operative relation thereto;

Fig. 3 i an elevation of the front of the machine;

Fig. 4 is a transverse section taken on the line 4-4 of Fig. 1, while Fig. 5 is a transverse section taken on the line 55 of Fig. 2.

At 1 is illustrated the usual perforated shell having a front head 2 and a main front journal 3, which may be made in any suitable manner, but which are shown as being cast integrally; and having a back head 4 and main back journal 5, of constructionsubstantially similar to that of the head'2and journal 3. Mounted within the shell 1 in any suitable manner is a suction box 6 which may be of any conventional construction. In the prescnt-instance, the box 6 is supported by-means of a front head 7 and journal ;8, which elements also may be formed integrally t0- g'ether, secured within the main journal 3 and at its rear end by a hollow, back head 9 and journal 10, received within the main rear journal 5. It is of course understood that the main front and rear journals 3 and 5 are intended to be supported in suitable bearings such as illustrated at 11 and 12'respectively, While provision may be made at 13 in the form of a loose piece under the main journal bearing 11, and adapted to be drawn therefrom, whereby the changing of the wire or felt is facilitated.

In order to properly car out my invention, suitable means must e provided for exhausting the liquid from the suction box through the rear main journal 5 and as shown, these means take the form of a plurality of openings 14 provided about the periphery of the main journal adjacent its outer extremity, and illustrated asbeing in the.

form of elongated slots. It is to be understood, however, that this showing is merely by way of illustration,-and may be varied at will without departing from the spirit of myinvention.

A suction header 15 is rotatably mounted about the journal 5, but when once located in its proper position, will be fixedrelative to A the said journal. Thishead'er is so located I alon the extent of the journal that it will be a apted to receive the liquid exhausted through the openings or ports 14, and preferabl is suitably recessed as at 16 in order to facilitate this action. If desired, a liningl? of rubber or other suitable material is fitted about the bore and face of the flanges of the header 15, while at 18 may be provided a loose ring riding on the journal 5 and abutting the lining 17. The ring 18 may be provided with suitable means such as three or more springs 19, which are arranged in suitable seats therein, and abutting the driving coupling 20 which is attached to the end of the journal 5, and are adapted to-resiliently urge the ring 18 against the header 15, and in turn to urge the header 15 against the shoulder 21 on the journal 5.

Proper lubrication is provided by means of a plurality of grooves 22, together with suitable connections 23, for the passage of water or other suitable lubricant. The connections 23, in addition, may be employed to introduce the lubricant to the grooves 22. A suitable hose connection in the form of flanges 24 may be provided to secure the header 15 to suction hose or the like 25, while the lowermost flange 24 may be provided with an outwardlyextendin lug 26 adapted to seat into a suitable pocIret 27 provided on the bearing 12.

In operation, the perforated shell 1 and heads 2 and 4, together with the driving coupling 20, revolve in the bearings 11 and 12, and are driven through the coupling 2O. The suction box 6, heads 7 and 9, angle adjustment 13, and the water and air devices remain stationary exce t when the suction area position is c ange At the same time, the rear journal '5 revolves inside of the suction header 15, the openings 14.being so positioned with respect to the header as to permit the suction to pull-on the interior of the journal, suction being applied through the hose 25, header 15 and openings 14 in the journal 5, which is preferably closed off at 28, and drawing the liquid from the suction box 6 through the hollow head 9 attached to the saidv box. Suitable lubrication is also provided by the construction above described. As a result ofmy construction, it is possible to manufacture a suction roll having small main journals provided with a direct drive,

and at the same time to apply suction to the driving end of the .roll, as differentiated from the front end, as is now the practice with small journal rolls. As a further consequence of my invention,-the suction connections do not have to be broken when changing the wires or felts.

While I have herein illustrated and prefer to employ the suction roll with the exhausting connection only at the rearjouf'nal it will of course be obvious that the construction herein illustrated may be employed for the rear or driving journal'of a suction roll the remaining journal of which is likewise exhausted as, for example, in the manner illustrated in the application of Guyon Miller and Albert H. Standley for patent on pneumatic suction box for suction rolls filed said roll and having a hollow journal com: municating with the interior of said firstmentioned journal, means in said first-mentioned journal intermediate the ends thereof communicating with the exterior, and a header operatively associated with said means and adapted to be connected to a suction device for exhausting the suction box.

2. In a rotatable suction roll having a rearwardly extending hollow journal, a closure for the outer end of said journal, means connected to said journal for rotating the same, a suction box mounted interiorly'ofsaid suction roll, and having a hollow journal extending interiorly of said first-mentioned journal, the said first-mentioned journal hav ing a plurality of elongated slots arranged about its periphery, and a header mounted about said journal and operatively associated with the said slots whereby the suctionbox may be exhausted.

3. In a rotatable suction roll having a rearwardly extending hollow journal, a closure for the outer end of said journal, means connected to said journal for rotating the same, a suction box mounted interiorly of said suction roll, and having a hollow journal extending interiorl of said first-mentioned journal, the said rst-mentioned journal having a plurality of elongated slotsarranged about its periphery, a header mounted about said journal, and means for lubricating the said journals and the header.

4. In a rotatable suction roll. having a hollow journal, a closure for'the outer end of said journal, means connected to said ournal for rotating the same, a suction box'mounted interiorly of said suction roll, and having a hollow journal extending interiorly of said first-mentionedjournal, the said first-mentioned journalv (having a plurality of elongated slots arranged about its periphery, and a header mounted about said journal and operatively associated with the said slots whereby the suction box may be exhausted.

5, In a rotatable suction roll having a hollow journal, a closure for the outer end of said journal, means connected to said journal for rotating the same, a suction box mounted interiorly of said suction roll, and having a hollow journal extending interiorl of said first-mentioned journal, the said rst-mentioned journal having a plurality of elongated slots arranged about its periphery, a header mounted about said journal, and means for lubricating the said journals and the header.

6. In a direct-driven suction roll having front and rear journals extending outwardly from the ends thereof, means connected to one journal intermediate the ends thereof and adapted to be connected to a suction device for exhausting the roll.

7. In a direct-driven suction roll having a hollow journal, a suction box mounted 1nteriorly of said roll having a hollow journal extending interiorly of said first-mentioned journal, means intermediate the ends of the first-mentioned journal and outwardly of the end of the last-named journal establishing communication between the exterior and interior of the first-named journal and means in communication with the first-mentioned means and adapted for connection with a suction device for exhausting the suction box.

8. In a direct-driven suction roll having journals extending outwardly from the ends thereof, driving means connected to the outer extremity of one of said journals and means adapted to be connected to a suction device for exhausting the roll including a member communicating with said journal intermediate the ends thereof.

9. A suction roll having an outwardly-extending journal at one end thereof, a driving connection with the outer extremity of said journal and means adapted to be connected to a suction device for exhausting the roll having connection with said journal intermediate its ends.

GEORGE D. KILBERRY. 

